We are testing squid reverse proxy for OWA and want to allow access to all except a certain group in AD. Currently I have squid configured to allow access to people that are in a certain group via: auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic --require-membership-of=domain_name+"Domain Users" How can I configure squid to allow access to all users and block users in a certain AD group? - Nick
